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1.发明申请A METHOD FOR GEOSTATIONARY STATION KEEPING OF A SPACECRAFT, AND A SYSTEM THEREFOR 审中-公开一种空间站的地球静止保持方法及其系统
公开(公告)号：WO2013180628A1
公开(公告)日：2013-12-05
申请号：PCT/SE2013/050595
申请日：2013-05-24
申请人： OHB SWEDEN AB
CPC分类号： B64G1/242 , B64G1/1085 , B64G1/26
摘要： The present invention provides a method for station keeping of a spacecraft in a defined slot of a geostationary orbit. The spacecraft comprises at least two propulsion units having forces with components in an east-, a west-, a south-and a north-direction in a coordinate system fixed to the spacecraft. The method comprises the steps of placing the spacecraft in said defined slot of the geostationary orbit, and controlling a direction of an apogee vector originating at the center of the earth and pointing towards an apogee of the geostationary orbit of the spacecraft to point in a direction with an angle in the interval from -90 to 90 degrees from a direction of a sun vector originating at the center of the earth and pointing towards the sun, and simultaneously controlling the eccentricity and inclination of the geostationary orbit to be within the defined slot.
摘要翻译： 本发明提供了一种用于在地球静止轨道的限定槽中的航天器的站保持的方法。 航天器包括至少两个具有力的部件的推进单元，该部件具有在固定到航天器的坐标系中的东，西，南和北方向的部件。 该方法包括以下步骤：将航天器放置在地球静止轨道的所述限定的狭槽中，并且控制起源于地球中心的远地点向量的方向，并指向航天器的地球静止轨道的远地点，以指向方向 与距地球中心的太阳矢量方向-90度至90度的角度指向太阳，同时控制地球静止轨道的偏心度和倾斜度在规定的槽内。
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公开(公告)号：WO2020099656A1
公开(公告)日：2020-05-22
申请号：PCT/EP2019/081528
申请日：2019-11-15
申请人： OHB SWEDEN AB
摘要： A propulsion device (1), comprising: an optical fiber loop (10-13) comprising at least one turn, the optical fiber loop (10-13) being arranged such that first and second curves (10,11) are formed on each turn of the at least one turn; and a light source coupled to the optical fiber loop (10-13); the first and second curves (10, 11) comprise first and second radii, respectively; and the first radius is smaller than the second radius.
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